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NSWRTM123
Chief Commissioner
Joined: Nov 09, 2007
Last Visited: Dec 3, 2008
Location: The present day
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Posted: Sat Sep 27, 2008 10:59 am
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Excuse my ignorance, but could someone please answer the following questions for me.
1. What distinguising features separate the NSWGR upper and lower quadrant signals?
2. What types should be placed where on a small branchline terminus.
I already have info on what different signal arms stand for and names components have.
Don't Make 'em like they used to
3801 limited and NSWRTM Forever
Alcos Rule!!!!!
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awsgc24
Minister for Railways
Joined: Feb 18, 2003
Last Visited: Dec 2, 2008
Location: Sydney, NSW
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Posted: Sun Oct 12, 2008 1:19 pm
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| NSWRTM123 wrote: | Excuse my ignorance, but could someone please answer the following questions for me.
1. What distinguising features separate the NSWGR upper and lower quadrant signals?
2. What types should be placed where on a small branchline terminus.
I already have info on what different signal arms stand for and names components have. |
UQ arms have three lenses, coloured GYR, GGR or GRR as the case may be.
UQ arms also have a second light above or below the arm, as the case may be.
LQ arms have two lenses, coloured GR.
LQ arms may have straight ends (home) or fishtail ends (distant).
UQ signals almost always are controlled by track circuits.
LQ signals may or may not be controlled by track circuits.
UQ and LQ arms may be bracketed on the same post, such as at Cootamundra until recent resignalling. None now left.
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tbohlsennswssrg
Train Controller
Joined: Dec 19, 2005
Last Visited: Dec 2, 2008
Location: Roseville, Sydney, NSW
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The_trolley
Chief Train Controller
Joined: May 02, 2006
Last Visited: Nov 23, 2008
Location: Foaming over the roland Jupiter 8
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Posted: Sun Oct 12, 2008 8:56 pm
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| NSWRTM123 wrote: |
2. What types should be placed where on a small branchline terminus. |
If its a terminus on a branch you will have just one signal, a Lower quadrant down home located at the entrance to the yard, say an engine lengths from the first set of points, usually the loop. Red with white band. Ground frames too operate points leading off the main and loop, thornleys or throw over/ball lever points elsewhere in the yard.
If you want to get real flash, a lower quadrant up starter and a couple catchpoint indicators.
Landmark (yellow triangle with centre cut out) before the home stick.
Regards,
Scott
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upperquadrant
Station Master
Joined: Oct 23, 2008
Last Visited: Dec 1, 2008
Location: ontop of a white stick
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Posted: Fri Oct 24, 2008 11:24 am
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| awsgc24 wrote: | [
UQ signals almost always are controlled by track circuits.
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Not allways the case. Not all UQ's are automatic. The can be controled from a signal box as well.
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awsgc24
Minister for Railways
Joined: Feb 18, 2003
Last Visited: Dec 2, 2008
Location: Sydney, NSW
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Posted: Sat Oct 25, 2008 5:39 pm
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| upperquadrant wrote: | | awsgc24 wrote: |
UQ signals almost always are controlled by track circuits.
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Not allways the case. Not all UQ's are automatic. The can be controled from a signal box as well. |
Shall rephrase. Should have said UQ almost always controlled by track circuits and may be controlled by signal levers as well.
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TE2815
Minister for Railways
Joined: Mar 19, 2004
Last Visited: Dec 2, 2008
Location: Under the newsdesk !
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Posted: Tue Oct 28, 2008 4:21 pm
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| awsgc24 wrote: | | upperquadrant wrote: | | awsgc24 wrote: |
UQ signals almost always are controlled by track circuits.
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Not allways the case. Not all UQ's are automatic. The can be controled from a signal box as well. |
Shall rephrase. Should have said UQ almost always controlled by track circuits and may be controlled by signal levers as well. |
Actually you were kind of right in the first place. Upper Quadrant signals are controlled by track circuits as they are/were located at locations with signal boxes that were track circuited areas.
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